Test-plug.



L. MANNESCHMIDT.

TEST PLUG. APPLICATION FILED MAR 30. I91]. 1,284,404., Patented N0v.12, 1918.

2 SHEETS-SHEET x.

Z INVENTOR Zucr'a Wax/26507;?

ATTORNEY WITNESSES L. MANNESCHMIDT.

TEST PLUG.

APPLICATION FILED MAR. 30. 19H.

Patented Nov. 12, 1918.

2 SHEETS-SHEET 2.

INVENToR WITNESSES lfucalzfiaizlzas'akmidg ATTORNEY LUCIA MANNESCHMIDT, on NEW BRUNSWICK, NEW JERSEY;

TEST-PLUG..

Application. filed March :30, 1917. Serial No. 15am;

To all whom it may concern:

Beit known thatI, LUGIA MANNEs OHMIDT, a citizen of United States of America, residing at New Brunswick, in the county of Middlesex and Stateof New Jersey, have in-' vented new and useful Improvements. in Test-Plugs, ofwhich the following is aspecification. I

This invention relatesto test. plugs, designed particularly for use, .byplumbers; in soil, waste and vent pipe connections, where,- in through the use of this implement, the pipecan be eflectuallyv sealed for testingpun poses.

In ordinary pipes, as heretofore proposed in practice, it has been customary to provide a pipe with an additional length beyondv that necessary for final. connection with the usual floor plate, and fixtures which additional length permitted a sealing ofthe end; of the pipe for the testing operation, and which additional. length was subsequently out ofi tofreduce the: pipe to a proper length for the setting of fixtures.

The primary object of the present invention is the provision of a single tool adapted to coiiperate with pipes of normal length, which tool is constructed to providea means whereby the terminal edge of saidpipe may be initially flared and sealed'without necessitating the use of solder or the like. There is by this invention, a clear savingof; solder and labor and the additionallength of pipe is entirely unnecessary and hence its waste is avoided. j V

A preferred type of the improved implement or tool is illustrated in the accompanying drawings in which 1 q Figure 1, is a front elevation of thetool applied ;to the pipe for sealing theasaine.

Fig. 2, is a diametrical cross-sectional. view through the same, showing in broken; lines, the tool operated to the; extent of. destroying the seal, and prior to the separation of the tool proper from the pipe end.

Fig, 3, is a detail cross sectional View on the line 3-3 of Fig. 2, and

Fig. 4, is a detail perspective view of one of the clampingring sections removed from the tool. I

Specification of Letters/Patent. Pate t duN 12 Fig, 5,, isa detail perspective view of the 1. v. Fig.1 6 is a perspective view of a portion of the device-showing a slightly modified o m h re f,

Fig. 'Z -isa plan mp ow v onne on. w h e d fies tiona detail. structure,,in the preferredernbod ment; illustrated, the tool is illustrated view. of theringsections a 1 a mpri ng a i y vi g a yok rising from and extendingover the ring, the center of the yoke;.being spaced an appreci} able distance above theplane of the ring; The yoke center abovethe-ring iis. formed with an opening 3, llGIe:Sl1OWn as rectangus lar, and slidably mounted in this opening is an ad usting nut 4. The nut ismounted for longitudinal movement axially of the ring 1f. An operating screw 5, is arranged for threaded connection with. the nut, having atits upper-- end, arr-o crating handle; 6.,

whereby the screw may e turned, A' sealing plug 7, is secured tothe lower endpf the nut, the plug being preferably of hollow construction having an unbroken bottom wall 8, and an upstanding sidewall 9. The v connection between the sealing plug an d screw iscomparatively free as-by the ball and socket connection illustrated. Theedge wall 9, of the sealing plug is of; particular formation in that its relatively lower portion 11, is of true cylindrical formandofalfdiameter slightly less than the normaldiameter of the soil pipe. The edge wall above the cylindrical portion 11, which willbe hereafter termed, the guiding portion of the A" plug, is outwardly flared asat 12, the extent of flare or angular relation being, that desired in the. completed pipe end.

The plug is provided with diametrically v opposedears 1 3, to each of whichthrough-a connection as pins 19", there is loosely secured a-section 15, of anexternal clamping; ring. The; sections 15, of. the ring, when ,in ring forming position, provide a member having an internal diameter corresponding; to the external diameter of the pipe. Each section has. an upperxor edge flange 16,-andadepend-ingwall 17, the angular member formed by the depending walls of the sections when in ring forming relation, presenting an external diameter corresponding approximately to the internal diameter of the ring 1. The depending walls of the sections 15, of the clamping ring, are cut away on upwardly inclined lines forming guiding edges 18, arranged in the withdrawing or inoperative movement of the plug parts to engage the upper edge of the ring 1, and so deflect the clamping ring sections so that they will be made to ride downwardly beyond the ring 1. 1

An operative withdrawal of the tool from the flared end of the pipe is permitted through the connection of the ring sections with the sealing plug. For this connection each ring section has an ear 19, the ears of the respective sections being connected with the cars 13, of tlie plug by pins 19 of an appreciable length and headed at the respective ends beyond the ears; The pins pass through slots 20, in the respective ears which are of such radial length as to permit a comparatively free play of the parts on the pins. In the application of the tool, the same 15 passed endwise over the pipe section 21, which pipe section as before stated, 18 of that exact lengthnecessary for its final cooperation with the usual floor plate. In the initial application of the tool, the parts are arranged with the guide section of the sealing plug in the upper'open end of the pipe, said guide section having such a lit with the pipe as to guide the plug in movement. The clamping ring sections rest within the main ring 1, and below the upper edge of the pipe. The upper end of the threaded element or screw is then given a blow with a hammer to drive the sealing plug into the pipe. The upper or flaring section of the sealing plug thus forces the pipe to the extent necessary for testing or sealing. The

'endwise movement of the screw is permitted through thesliding cooperation of the nut with the yoke. The sealing action of the tool is secured by threaded movement of the screw element which moves the ring 1, and plug relatively of each other or more exactly, moves the ring 1, upwardly of the pipe. The movement is continued until the clamping sections bind against the lower end of the flared portion of the pipe so that an efiective sealing action of the plug is had'in the endof the pipe, the pipe end being clamped between the plug and clamping rings. In the reverse or separating moveinents of the tool,the rotation of the screw element in a direction opposite to that for effecting the scaling operation, tends first to lift the plug from sealing cooperation with the pipe until such plug is at the limit of upward movement restrained by the connection between the plug and clamping ring true sealing position.

sections as the latter are still in more or less clamping cooperation with the pipe end, being held by the pins 19"*. The further unscrewing movement tends to force the main ring downwardly, this movement being continued until the clamping action of the clamping ring sections is broken, whereupon, thewhole device drops on the pipe with the sealing plug again under the end of the pipe. The sealing plug then becomes the relatively fixed element, and the further unscrewing action moves the main ring outwardly, while holding the clamp ring sections against such outward movement. This action is continued until the main ring rides below the lower edges of the clamping ring sections, whereupon there is a tendency incident to the connection between the clamping ring sections and the plug to swing said sections outwardly. This action is materially aided by means of said pins, and in fact, largely gained through the cutaway or guide edge portions of the depending walls of the clamping ring sections. These guide edge portions bear upon the upper edg of the main ring and in the further downward movement, serve to guide or deflect the clamping ring sections so that they are directed to a position beyond the main ring. The tool may now be withdrawn over the end of the pipe.

The guiding portion of the sealing plug is of considerable importance in connection with this detail of the invention in that by its cooperation within the surface of the Wall of the pipe, it insures a correct guiding movement of the plug vertically and horizontally both under the guiding action to flare the pipe and the subsequent sealing action, so that the sealingplug will absolutely center itself with respect to the pipe, with the result of completclyand effectually sealing the pipe, notwithstanding that the plug may initially operate in other than a Furthermore, the connections between the various parts of the structure are permanent that is, there are no radial separable parts. Under these circumstances, the tool is in entirety and may be handled, when not in use,as conveniently as 1f it consisted of a single member, there being no possibility of a separation of parts to interfere with its effective operation.

A slightl modified construction is shown in Figs. 6 and 7 in which, to provide a positive means for causing the clamping ring sections to swing outwardly in the release operation of the tool, the arms of the yoke 2,

adjacent their connection with the clamping ring and on their inner surface, are formed with upwardly divergent slots or channels, 25, and the inner or meeting ends of the clamping ring sectionsprovided with lugs 26, to slidably seat in said slots or channels.

As the clamping ring and yoke move downwardly, as described in the release operation, the. clampingring sections are forced to move outwardly, and thus sufficiently beyond the main ring to permit withdrawal of the tool from the pipe.

-What is claimed is 1. A test plug, comprising, a supporting member adapted to cooperate with a pipe end of uniform internal diameter, and a combined sealingand flaring member operatively connected with the sealing member for operating on the pipe beyond the supporting member.

2. A test plug, for pipes of uniform internal diameter comprising, a supporting member arranged to be mounted upon the pipe, and a combined sealing plug and flaring ing member for operating on the pipe beyond the supporting member.

3. A test plug for pipes of uniform internal diameter comprising, a supporting member to engage the pipe, a combined sealing and flaring plug, and a threaded and limited sliding connection between the plug and supporting member, said plug engaging the pipe beyond the supporting member.

4. A test plug for pipes comprising, asupporting member adapted to loosely engage the pipe end, a sealing plug having an inclined section for pipe flaring action, a mem ber held against other than a sliding move ment in the supporting member, and an adjusting rod having threaded connection with the sliding member and connected to the sealing plug.

5. A test plug for pipes, comprising, a supporting member to loosely engage the pipe, a combined sealing and flaring plug having sliding and threaded connection with the supporting member, and clamp ring sections to externally engage the pipe section in the sealing cooperation of the plug therewith.

6. A test plug for pipes, comprising a supporting member to loosely engage the pipe, a combined sealing and flaring plug having sliding and threaded connection with the supporting member, clamp ring sections to externally engage the pipe sectlon in the sealing cooperation of the plug therewith, the clamping rings being held in engagement with the pipe end by the supporting member.

7. A test plug for pipes, comprising, a supporting member to loosely engage the pipe, a combined sealing and flaring plug having sliding and threaded connection with the supporting member, clamp ring sections to externally engage the pipe section 1n the sealing cooperation of the plu therewith, the clamp ring sections being oosely connected to the sealing plug.

8. A test plug for pipes, comprising a ment with the pipe end member adjustably mounted in the support.

supporting member to loosely engage the pipe, 3, combined sealing and flaring plug having sliding and threaded connection with the supporting member, clamp ring sections to externally engage the pipe section in the sealing cooperation of the plug therewith, the clamping rings being) held in engagey the supporting member, the clamp ring sections having guide edges to engage the supporting member to radially deflect the clamo'ring sections in the release movement of the parts.

9. A test plug for pipes comprising, a main ringvarranged to loosely encircle the pipe, a yoke carried thereby, a nut mounted in the yoke and held against other than sliding movement, an operating rod threaded in the nut, and a plug having free universal connection with the lower end of the rod, said plug having a peripheral surface formed to provide a guiding section and a pipe end flaring section.

10. A test plug for pipes comprising, a main ring arranged to loosely encircle the pipe, a yoke carried thereby, a nut mounted in the yoke and held against other than sliding movement, an operating rod threaded in the nut, and a plug having free universal connection with the lower end of the rod, said plug having a peripheral surface formed to provide a guiding section and a pipe end flaring section, and clamping ring sections adapted to engage the outer surface of the pipe beneath the flared portion thereof in the sealing cooperation of the plug with the pipe.

11. A test plug for pipes comprising, a main ring arranged to loosely encircle the pipe, a yoke carried thereby, a nut mounted in the yoke and held against other than sliding movement, an operating rod threaded in the nut, and a plug having free universal connection with the lower end of the rod, said plug having a peripheral surface formed to provide a guiding section and a pipe and flaring section, clamping ring sections adapted to engage the outer surface of the pipe beneath the flared portion thereof in the sealing cooperation of the plug with the pipe, said clamp ring section having pin and slot connections with the sealing plug to permit a comparatively free movement of the sections with respect to the plug.

12. A-- test plug for pipes, comprising a supporting mem er to loosely engage the pipe, a sealing plug operable in said member, clamp-ring sections to eigteriorly engage the pipe section in the sealing cooperation of the plug therewith, and cooperating guid ing means on the ring sections and member.

13. A test plug for pipes, comprising, a supporting member to loosely engage the pipe, a sealing plug operable in said member,c1amp-ring sections to exteriorly engage the pipe section in the sealing cooperation of the plug therewith, said member being formed with inclined ways, and guide lugs carried by the ring sections to seat in said ways for guiding the sections.

14. A test plug for pipes, comprising a supporting member to loosely engage the pipe, a sealing plug operable in said member, clamp-ring sections to exteriorly engage the pipe section in the sealing cooperation of the plug therewith, said member being formed with downwardly convergent in tersecting ways, and lugs on the ring sections to engage said ways.

In testimony whereof I affix my signature.

LUCIA MANNESCHMIDT.

Copies ofthis patent may be obtained for five cents each, by addressing the Commissioner of Patent:-

Washington, D. 0." 

